Sealing strip



E. w. NORTH SEALING STRIP Sept. 26, 1933.

Filed Nov. 24, 1930 G STRW' Edwin W. North, Rockford, Ill., assignor to National Look 00., Rockford, 111., a corporation of Delaware Application November 24, 1930 Serial No. 497,692

Claims.

This invention relates to sealing strips and to such a strip that is particularly well adapted for use in combination with a chest such as a cedar chest to tightly seal the same and prevent the entry of dust between the side walls and lid where the two contact.

It is the purpose of this invention to provide such a strip which is readily installed and retained in place without the use of nails, screws or other separate attaching means and which will provide a tight seal preferably, although not necessarily, at two points along the sealing edge.

It is also an object of this invention to eliminate any raw edges along the sealing strip which would tend to catch into any articles being placed in the chest. p

A better understanding will be had of this invention from the following description given in connection with the drawing in which the strip and modified form thereof is shown as applied to a chest or chest lid. It is manifest that the strip may be utilized for other purposes and may be in the form of a weather strip and applied to doors or windows in a similar manner.

In the drawing:

Fig. 1 is a plan view of a chest with the lid partly broken away illustrating an installation of a sealing strip constructed in accordance with this invention.

Fig. 2 is a partial transverse vertical section through a portion of the lid and side wall of a chest illustrating the installation of a. strip constructed in accordance with this invention, the lid not being fully closed.

Fig. 3 is a section similar to Fig. 2v illustrating :he lid in fully closed position. i I

Fig. 4 is a similar section illustrating the strip ;ecured to the lid instead of the edge of the wall, and

ilightly modified form of this invention.

Referring to the drawing and more particularly ;o Figs. 1 to 4 inclusive, it will be seen that the top edges of the surrounding or sidewalls l of the :hest are provided with inner and outerparallel grooves or slots 2 and 3 respectively to receive the erminating edges of the strip indicated generally my the reference character 4.

The sealing strip is preferably formed of a trip of relatively thin resilient sheet metal. One ongitudinal edge 6 is bent back partly'upon' itself LS at 7 to provide a hook along that edge, The )ody of the strip is flanged outwardly substan .ially at 90 in the opposite direction from the look to provide a fiat flange 8 from which the Fig. 5 is a section similar to Fig. 2 showing astrip is bent back upon itself as at 9 andterminates in a portion 11 curved transversely with respect to the length of the strip. The formation is such that the terminating longitudinal edges are spaced apart a distance equal to the distance beween slots 2 and 3.

'When installed the longitudinal edge 6 and the hook 7 formed thereon is inserted in theinner groove 2. 1 The hook 7 being normally greater in width than the groove will engage the side wall of the groove and secure the strip therein. The terminating longitudinal edge of the curved portion 11 will enter the outer groove 3 and thus conceal the raw terminating edge, as is clearly shown" in Fig. 2. When the lid 12' is fully closed as shown in Fig. 3 the inner surface of the lid first engages the curved portion 11 and forces the same into groove 3 and then engages thelon'gitudinal folded edge of portion 9 which has been sprung upwardly by the downward movement of the portion 11. From this it can be seen that'thelid engages the strip .at two spaced points. This double engagement further insures of the strip.

In Fig. 4 there is shown a slight modification in which the sealing strip is secured within two grooves 2a and 3a formed in the lid 12 rather than in the surrounding side walls of the chest.

In Fig. 5 there is shown a slightly modified form of sealing strip. In this form the strip extends along a portion of the interior surface of the surrounding sides, the latter being formed with a groove 2b to receive one edge of the sealing strip in a manner similar to the grooves 2 and 2a. The top edge surface of the surrounding sides are also grooved as at3b to receive thefree end of the strip. The strip thus engages two intersecting sides or surfaces.

v The strip itself is formed substantially the same as that previously described in that one edge 61) isprovided with a .hooked longitudinal edge 7b, the latter portions being received within the groove 2b. The body of the strip instead of being bent upon itself as at 8 and 9 in the previous forms is provided with a straight portion 8b which-hesalong the interior top surface of the surrounding sides and a straight portion 9b overlying the top edges of the surrounding walls and terminating in a transversely curved portion 11b which in turn terminates in a longitudinal curved free edge which enters groove 3b.

The sealing action of the strip shown in Fig. 5 is substantially the same as that described in connection with the strips shown in Figs. 1 to a tight (seal 4 with the exception that the strip shown in Fig. 5 does not afford a seal at two points.

It follows from the above description that there has been'provided a sealing strip which requires no separate fastening means and which when used in combination with a chest having previously prepared edges will provide an effective seal. The resiliency of the metal used will insure long life whereas the complete concealing of all raw edges will prevent their coming into contact with articles being placed in the chest.

When installing the strip in a chest the corners may of course be mitered as shown in Fig. 1 and the adjoining edges soldered if desired.

As previously stated, this invention has been shown as applied to a chest although it is manifest that it may be put to other similar uses. It is also apparent that minor changes may be made in the details of construction without departing from the spirit and scope 'of this invention as defined in the appended claims.

I claim:

1. A sealing strip formed of a strip of resilient sheet metal having one longitudinal edge bent back to form a hook adapted to be received and frictionally held within a groove in the member to which the strip is to be applied and a portion of the strip adjacent its other longitudinal edge being curved transversely with respect to the length of the strip, the portion of said strip between said hooked edge and said curved portion being flanged at substantially 90 to the hooked edge and bent back upon itself.

2. In combination, a chest having a hinged lid thereto and a pair of grooves formed in one of the contacting surfaces between the lid and the walls thereof and a metallic resilient sealing strip having one longitudinal edge secured in one of said grooves and a portion extending between the contacting surfaces of said chest and lid and normally spaced from the grooved surface, said strip terminating in a free edge projecting into the other of said grooves.

3. In combination, a chest having a hinged lid thereto and a pair of grooves formed in one of the contacting surfaces between the lid and the walls thereof and a metallic resilient sealing strip having one longitudinal, edge fixedly secured in one of said grooves and a portion extending between the contacting surfaces of said chest and lid and normally spaced from the grooved surface, said strip terminating in a free edge projecting freely into the other of said grooves but stopping short of the bottom thereof and adapted to be moved further into said groove upon engagement of said strip by the other of said contacting surfaces.

4. In combination, a chest having a hinged lid therefor and having a smooth sided groove formed in one of the contacting surfaces between the lid and walls and a resilient metallic sealing strip having one longitudinal edge hooked and disposed within the groove in engagement with the sides thereof to frictionally secure said sealing strip in said groove and having a free portion extending at an angle from said hookededge, said free portion being curved transversely throughout its length and disposed between the contacting portions of the sides and lid of said chest when said lid is in closed position.

5. In combination, a chest having a hinged lid therefor and a groove formed in one of the contacting surfaces between the lid and the walls thereof, and a resilient metallic sealing strip having one longitudinal margin reversely bent to form an expansible anchoring portion disposed within said groove and frictionally engaging the side walls thereof to secure said sealing strip in said groove, said strip having a portion extending at an angle from said groove and arranged to engage the other of said contacting surfaces when the lid is closed.

I EDWIN W. NORTH. 

